1B91.] North American Hyphomycetes. 23 



ued into sometimes greatly elongated simple septate filaments 

 which may be seen with a hand lens projecting here and 

 there beyond the general surface of the tuft. 



The genus bears much the same relation to Oedoceph- 

 alum that Dispira bears to Aspergillus, and the somewhat 

 similar type of growth and branching seen in VanTieghem's 

 species has suggested the specific name. 



Synopsis of thte described species of Oedocephalum 



AND RnOPALOMYCES 



?pA 



Haplotrichum), Fungi Italici, plate 805. The hyphae of this 

 species are described as hyaline and figured as brownish; 

 fertile simple, rarely branched. Spores spherical or broadly 

 elliptical, 7-10// in diam., yellowish. On roots of lemon. 



O. album Preuss: Fung. Hoyersw., No. 108: Sturm's Flora, 

 Taf. 63. This is referred to O. glomcrulosum by Harz, but 

 is figured with round spores. Otherwise the description and 

 plate furnish no clue to its identity. 



O. alt mum Preuss: 1. c, No. 109, 1. c. Taf. 63. This 



species is said to be distinguished from the preceding by the 

 fact that the head lacks the warts and furrows present in 

 O. album. The spores are also figured as spherical and the 

 species is otherwise equally unrecognizable. 



O, aurantiacum Cooke: Grevillea, vol. V, p. 147. Forms 

 orange colored orbicular patches. Hyphse short, fasciculate, 

 septate, hyaline, above spherical and papillate. Spores spheri- 

 cal, orange-colored, smooth, (no measurements). On leaves of 



forest trees. India. 



My 



k. k. zool. bot. Gesell. in Wien, 1*74. The heads of this 

 species are said to produce longish cells, which are covered 

 with muricate brown spores 7 XlOju. It is therefore not an Oe- 



docephalum. 



O. byssinum Saccardo: Sylloge, IV., p. 49. Bonorden 

 Abhaiid. a. d. Geb. d. Mycol. II., p. 95, Taf. 1, fig. 12, sub 

 Periconia. Karsten Symb. a. Myc. Fenn., 1888, XXVI, 4. p. 

 49, subspecies Inrbarionim. Hyphae hyaline, hardly septate. 

 Spores spherical. Karsten's sub-species has spores perfectly 

 spherical, verruculose 12-14/i in diam. Fertile hyphse 2 

 mm. X I 5 - 20//. Heads becoming yellowish. The type seems 

 very near Q. albidum Sacc. from the description. On decay- 

 ing leaves. 



